fkie_cve-2025-38013
Vulnerability from fkie_nvd
Published
2025-06-18 10:15
Modified
2025-06-18 13:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request Make sure that n_channels is set after allocating the struct cfg80211_registered_device::int_scan_req member. Seen with syzkaller: UBSAN: array-index-out-of-bounds in net/mac80211/scan.c:1208:5 index 0 is out of range for type 'struct ieee80211_channel *[] __counted_by(n_channels)' (aka 'struct ieee80211_channel *[]') This was missed in the initial conversions because I failed to locate the allocation likely due to the "sizeof(void *)" not matching the "channels" array type.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07c737d9ab02c07b562aefcca16aa95077368e24
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/82bbe02b2500ef0a62053fe2eb84773fe31c5a0a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fde33ab3c052a302ee8a0b739094b88ceae4dd67
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request\n\nMake sure that n_channels is set after allocating the\nstruct cfg80211_registered_device::int_scan_req member. Seen with\nsyzkaller:\n\nUBSAN: array-index-out-of-bounds in net/mac80211/scan.c:1208:5\nindex 0 is out of range for type \u0027struct ieee80211_channel *[] __counted_by(n_channels)\u0027 (aka \u0027struct ieee80211_channel *[]\u0027)\n\nThis was missed in the initial conversions because I failed to locate\nthe allocation likely due to the \"sizeof(void *)\" not matching the\n\"channels\" array type."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mac80211: Establecer n_channels tras asignar la estructura cfg80211_scan_request. Aseg\u00farese de que n_channels est\u00e9 establecido tras asignar el miembro de la estructura cfg80211_registered_device::int_scan_req. Observada con syzkaller: UBSAN: array-index-out-of-bounds en net/mac80211/scan.c:1208:5. El \u00edndice 0 est\u00e1 fuera de rango para el tipo \u0027struct ieee80211_channel *[] __counted_by(n_channels)\u0027 (tambi\u00e9n conocido como \u0027struct ieee80211_channel *[]\u0027). Esto no se detect\u00f3 en las conversiones iniciales porque no se localiz\u00f3 la asignaci\u00f3n, probablemente debido a que \"sizeof(void *)\" no coincide con el tipo de matriz \"channels\"."
    }
  ],
  "id": "CVE-2025-38013",
  "lastModified": "2025-06-18T13:46:52.973",
  "metrics": {},
  "published": "2025-06-18T10:15:32.797",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/07c737d9ab02c07b562aefcca16aa95077368e24"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/82bbe02b2500ef0a62053fe2eb84773fe31c5a0a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fde33ab3c052a302ee8a0b739094b88ceae4dd67"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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